Effects of exercise training on the excitability of the corticospinal tract during dual-task performance.

2017 Fiscal Year Final Research Report

• Project/Area Number: 16H07158
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Developmental mechanisms and the body works
• Research Institution: Tokyo University of Agriculture and Technology (2017); Seiwa University (2016)
• Principal Investigator: Fukumoto Hiroyuki 東京農工大学, (連合)農学研究科(研究院), 助教 (00779308)
• Project Period (FY): 2016-08-26 – 2018-03-31
• Keywords: 皮質脊髄路興奮性 / 皮質抑制性 / 二重課題法 / 経頭蓋磁気刺激法（TMS） / 運動誘発電位（MEP） / 長期運動経験 / 短期トレーニング

Outline of Final Research Achievements

In the present study, the effects of dual-task performance on the corticospinal tract and those of exercise training on the corticospinal tract during dual-task performance are analyzed using motor-evoked potential (MEP) and cortical silent period (CSP), elicited by transcranial magnetic stimulation (TMS). Long-term exercise training induced plastic changes at the upper spinal cord, including the primary motor cortex (M1), and altered the balance between excitation and suppression in the cerebral cortical neurons. In addition, short-term training diminished the cortical suppression (disinhibition) to overcome motor-output interference, which lowers the excitability of the corticospinal tract during dual-task performance.

Free Research Field

身体教育学